Results 71 to 80 of about 8,177 (202)

Bifurcation diagrams for singularly perturbed system: the multi-dimensional case.

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
We consider a singularly perturbed system where the fast dynamics of the unperturbed problem exhibits a trajectory homoclinic to a critical point. We assume that the slow time system admits a unique critical point, which undergoes a bifurcation as a ...
Matteo Franca
doaj   +1 more source

Analytic proof of the existence of the Lorenz attractor in the extended Lorenz model

open access: yes, 2016
We give an analytic (free of computer assistance) proof of the existence of a classical Lorenz attractor for an open set of parameter values of the Lorenz model in the form of Yudovich-Morioka-Shimizu.
Ovsyannikov, I. I., Turaev, D. V.
core   +1 more source

Bifurcation Analysis of Nonlinear Oscillations in the Electrical Activity of Pancreatic β‐Cells

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 25, Issue 4, December 2025.
ABSTRACT Cell biological systems are characterized by complex relationships and nonlinear processes. The modeling of these processes improves the understanding, and represents a significant enrichment of the experimental investigation. An example of such a system is the regulation of blood glucose concentration by pancreatic β$\beta$‐cells through the ...
Paula Clasen   +2 more
wiley   +1 more source

Simple-Zero and Double-Zero Singularities of a Kaldor-Kalecki Model of Business Cycles with Delay

open access: yesDiscrete Dynamics in Nature and Society, 2009
We study the Kaldor-Kalecki model of business cycles with delay in both the gross product and the capital stock. Simple-zero and double-zero singularities are investigated when bifurcation parameters change near certain critical values.
Xiaoqin P. Wu
doaj   +1 more source

Spatial Effects of Phase Dynamics on Oscillators Close to Bifurcation

open access: yesMathematics, 2023
The phase reduction approach has manifested its efficacy in investigating synchronization behaviors in limit-cycle oscillators. However, spatial distributions of the phase value on the limit cycle may lead to illusions of synchronizations for oscillators
Yihan Wang, Jinjie Zhu
doaj   +1 more source

Delay-induced multistability near a global bifurcation

open access: yes, 2007
We study the effect of a time-delayed feedback within a generic model for a saddle-node bifurcation on a limit cycle. Without delay the only attractor below this global bifurcation is a stable node.
E. SCHÖLL   +5 more
core   +1 more source

Chaos and Control in Coronary Artery System

open access: yesDiscrete Dynamics in Nature and Society, 2012
Two types of coronary artery system N-type and S-type, are investigated. The threshold conditions for the occurrence of Smale horseshoe chaos are obtained by using Melnikov method.
Yanxiang Shi
doaj   +1 more source

Resonance bifurcation from homoclinic cycles

open access: yesJournal of Differential Equations, 2009
Consider a dynamical system \(x' = f(x)\) in \(\mathbb{R}^n\), and a group \(G\) (in this case a finite group) acting in \(\mathbb{R}^n\) through a linear representation. The dynamnical system is \(G\)-symmetric if \(f (g x) = g f(x)\) for all \(x\) and all \(g \in G\).
Driesse, R., Homburg, A.J.
openaire   +4 more sources

Diverse general solitary wave solutions and conserved currents of a generalized geophysical Korteweg–de Vries model with nonlinear power law in ocean science

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 4, Page 5039-5063, 15 March 2025.
This article presents an analytical investigation performed on a generalized geophysical Korteweg–de Vries model with nonlinear power law in ocean science. To start with, achieving diverse solitary wave solutions to the generalized power‐law model involves using wave transformation, which reduces the model to a nonlinear ordinary differential equation.
Oke Davies Adeyemo
wiley   +1 more source

Multistable Solitons in the Cubic-Quintic Discrete Nonlinear Schr\"odinger Equation

open access: yes, 2005
We analyze the existence and stability of localized solutions in the one-dimensional discrete nonlinear Schr\"{o}dinger (DNLS) equation with a combination of competing self-focusing cubic and defocusing quintic onsite nonlinearities.
Alfimov   +53 more
core   +1 more source

Home - About - Disclaimer - Privacy